java - Java POJOをJSON文字列に変換する方法は?

Question

値を設定するPOJOがあります。pojoは次のとおりです。

public class CreateRequisitionRO extends AbstractPortfolioSpecificRO {

    private static final long serialVersionUID = 2418929142185068821L;

    private BigDecimal transSrlNo;
    private String transCode;
    private InflowOutflow inflowOutflow;

public BigDecimal getTransSrlNo() {
        return transSrlNo;
    }

    public void setTransSrlNo(BigDecimal transSrlNo) {
        this.transSrlNo = transSrlNo;
    }

    public InflowOutflow getInflowOutflow() {
        return inflowOutflow;
    }

    public void setInflowOutflow(InflowOutflow inflowOutflow) {
        this.inflowOutflow = inflowOutflow;
    }
    public String getTransCode() {
        return transCode;
    }
}

これは私が値を設定する方法です:

CreateRequisitionRO[] request = new CreateRequisitionRO[1];
    request[0].setTransSrlNo(new BigDecimal(1));
    request[0].setTransCode("BUY");
    request[0].setInflowOutflow(InflowOutflow.I);

now i would like to convert/serialize the above java pojo to Json string.

これを行う方法を誰かが助けてくれますか？

よろしくお願いします